US election 2024: Joe Biden says stopping Donald Trump is motivation to run | BBC News

US President Joe Biden has said part of his motivation to run for a second term next year is to prevent the return of Donald Trump. "We cannot let him win," Mr Biden told reporters. At a Fox News event, Mr Trump said that he thought Mr Biden was too old for such a political rematch. Mr Trump is the runaway front-runner in the Republican race even as he faces four criminal cases. Mr Biden, as the incumbent president, is the presumptive Democratic nominee. But neither candidate